Type-writing machine.



G. A SE18.

TYPE WRITWG MACHINE. APPLICATION man SEPT. e. 1916.

ihiientml Bea 31, 1918..

4 SHEETS-SHEET H: '5 A? JRNEY e. A, SE18. TYPE WRITING MACHINE.

APPLICATION FILED SEPT. 6, I9I6.

Patented 1m 31, 1918.

1SHEEI-SHEET 2 U INVENTUR y- Q w 3M H15 ATTEIRNEY G. A. SEES.

TYPE WRITING MACHINE.

APPUCATION mu) SEPT-6.1916.

Patented Dec. 3 1918,

4 SHEETS-SHEET 3.

i g 1 J NVENTU H15 ATTEIFWEY G. A. SE18.

TYPE WRITING MACHINE.

APPLKCATION FILED SEPT. 6, 1916.

Patented Dec. 31, 1918.

4 SHEETS-SHEET 4.

i NV EN TU R in wmfdw HIE ATTBRN-Ev TY" EWRITEB,

lCv 'liifil and the parts of the cennections ia'ersal and space key which J an U tin dog 106 .11 the pres -i) iient of my invention the t pe he unlvei fli bar i. .p by a type ha meiion is she lezzs; in 111 *tion, and ,reasad 2?. the iming stroke I of the reinaftfir mom clearly rzmdevices franw (If the nmchine comprisas a 1i; cie ciriptian and base 1 and top plate 2 suppeited by corner in appen led A suitable power driven shown) is meunted above the mmrement from side to side e and ca i s a platen 3 and This feed me]: meshes with i '1 OPP/T557615 amines-ted with it wheel i) which in turn 00- with tic-Vices co-ac'iiwith shown in the presing the invention of Edwin .nd forming the subject-matter i011 filed by him on the 23rd *lii, 1917, Serial N". 163,963.

he printing; instrumentali as or segmennn'zmg'eci iype bars 10, are pivoted at qe-gmz nt 12 and L re adapted f0 strike and i-eaiwmzwizly inst ihe front of the plate; A1? v sui'mbie key 00nd actuating IEQZLBS be employa versal bar 16 in the approach of the type bar to the printing position. From an inspection of Figs. 1 and 2, it will be understood that each type bar moves independently of the universal bar during the first portion of the movement of a type bar so that the universal bar and the parts controlled thereby ofi'er no resistance to the printing movement of the type bars until late in the printing stroke of the latter when they have acquired momentum and the resistance offered by the actuation of that cscapement mechanism is felt the least by the operator. The universal bar is provided at the central ortion thereof with an upwardly pr0ject1ng lug 17 which has a forwardly extending pin 18. secured thereto. This pin is received in a guide opening in the type bar segment 12 to support and guide. the universal bar at the central portion thereof. The universal bar is likewise provided with two rearwardly projecting arms 15) at the sides thereof. The rear ends of their-I arms are pivoted at 20 to the upper ends of upright crank arms 21 which project upwardly from a rock shaft 22. This rock shaft extends transversely of the machine and is recessed at its ends to receive cone pivot screws 23 received in tapped openings in depending arms 24 which project from the top plate of the machine, each screw being held in its adjusted position by a lock nut 25. In this manner the universal bar is mounted for movement fore and aft of the machine. Arranged centrally of the rock shaft 22 and projecting therefrom is an upright rocking member or crank arm 26 provided at its upper end with a headed pin 27 which projects from one side thereof. This pin is received in an open ended slot 28 formed in the forward end of an arm 29 of a substantially horizontally disposed bifurcated actuating member or link designated as a whole by the reference numeral 30. This link is likewise provided with a depending arm 31 which is bent laterally at its lower end to form an offset contact face or abutment 32 which in the normal disposition of the parts is adapted to bear against the actuating arm 26, as shown in Fig. 1. It will be observed that the contact face 32 of. theactuating link, in the present instance,

is less than one-third the distance from the pivotal axis of the rock shaft 22 that the pin 27 is from said pivotal axis. The purpose of this arrangement will hereinafter more clearly appear. I

FIOIILAKII inspection of Figs. land 2 it will aeaeae be seen that the pin 27 in the normal disposition of the parts does not engage the end wall 33 of the slot 28 but is free at this point to move independently of the link 30 until the pin 27 reaches the end wall 33 of the slot. The rear end of the actuating link 30 is apertured to receive aheaded stud or pin 3st which projects laterally from one side of the depending actuating arm or member of the dog rocker 9, thus pivotally connecting the actuating link and dog rocker. A returning spring 35 may be connected to the arm 26 to return the rock shaft 22 and the parts connected therewith, including the universal bar 16, to normal p0sition. The forward end of this spring 35 may be connected to any suitably fixed portion of the machine. The dog rocker 9 has av returning spring 36 connected therewith and by which the dog rocker and the actuating link 30 may be returned to normal position.

F rom the foregoing description it will be understood that an actuation of a type bar will result in the movement of the latter being effected first independently of the universal bar throughout a considerable portion of its stroke or until the type bar reaches, say, by way of example, the full line position indicated in Fig. 2, when the engaging edge 14; ofthe type bar contacts with the forward edge of the universal bar and moves the latter rearwardly. This movement of the universal bar transmits movement to the rock shaft 22 and to the crank arm 26 carried thereby, moving the pin 27 rearwardly in the slot 28 until it reaches the rear end wall 33 of the slot. During this movement of the universal bar motion is transmitted to the actuating link 30 solely through the depending arm 31 of the latter by the engagement of the actuating arm 26 therewith. It will be understood, therefore, that motion thus transmitted to the actuating link 30 is effected by a short lever arm, which in effect corresponds to the distance from the pivotal axis of the rock shaft 22 to the point of engagement between thefactuating arm 26 and the contact face of th arm 31. It follows that the movement tra ismitted to the link 30 through its arm 31 is'relatively slight and slow and offers but slight resistance. When, however, the pin 27 reaches the end of the slot a relatively fast motion is transmitted to the link through said pin and asthc movement of the link continues the contact face 32 will be withdrawn from the actuating arm 26, the motion of the link being effected wholly through the engagement of the pin 27 with thelink, and by a lever arm which in effect corresponds to the distance of the pin 27 from the pivotal axis of the rock shaft llt llt

ant.

ale to the lch secured space bar, and independently of the rock shaft 22 and the parts carried thereby; the link 30 at this time receiving a movement with the dog rocker away from the crank arm 26 by reason of the pin and slot connection 2728 between the arm 26 and the link 30.

For the purpose of the present invention the connections between the space key and the dog rocker may be of any suitable construction but preferably of such construc tion as to enable the dog rocker to be actuated independently thereof by the universal bar. The specific means shown and described in the present instance for actuating the dog rocker from the space key are not my invention but are the invention of Elbert S. Dodge and constitute the sub ect-matter of a separate application filed of even date herewith and bearing Serial No. 118,675.

In accordance with my present invention I have provided a dog rocker, the body por tion 59 of which is preferably of platedike formation with trunnions 60 and 61 formed thereon. The formation of this dog rocker is such that it may be, and preferably 1s, formed by drop forging and case hardening instead of being formed as a casting as has been common heretofore. The fixed feed dog 8 is preferably formed from the body portion of the dog rocker and is case hardened with it and is provided with a beveled working face 62. The'body portion of the rocker is slotted at 68 where it is enlarged and tapped to receive a set screw 64. This set screw constitutes an adjustable stop which co-acts with a stop 65 carried by the bracket 66 which supports the dog rocker. The stops 64 and 65 are arranged aoove the pivotal axis of the dog rocker and co-act to arrest it in its movement from the normal position. The. (log rocker is also slotted at 67 where it is tapped to receive a set screw 68 which cooperates at its forward end with a stop 69 carried by the bracket plate to limit the movement of the dog rocker back to normal position. Each trunnion 61 apertured at 70 to receive a cone pin 71 seated in a bearing 79 carried by the bracket plate 66. A set screw 73 is received in a tapped opening in each bearing 72 and bears at its inner end against the associated pin 71 to hold it in its adjusted position. The bracket plate 66 may be secured to the top plate of the machine by screws 7 i which extend through openings in the foot piece 75 of the bracket plate. The loose dog 7 is formed on one end of a lever 76 which is pivoted intermediate its ends and is provided with an elongated hub-like bearing portion 77 through which 1 :ded pin 78 extends to provide a pivo :ing" forthe loose dog. This pivot I ends through the body portion of .-e ro ker and through a bearing sleeve med. thereon. A set screw SO is received. in a tapped opening in nesaese the body portion of the dog rocker and bears at its inner end against the pivot pin 78 retain it in its adjusted position. A screw 81 is received in a tapped opening; in the trunnion 61 and extends downwardly therefrom to provide a connection for the rear end of the returning spring 36, the forward end of said spring being connected to a bracket arm 82 secured by screws 83 to the bracket plate 66. A contractile spring 8% is connected at one end to a pin 85 pr leeting from the body of the dog rocker and at opposite end, as at 86, to the lower end. the loose dog, or the lever 76 which part thereof. The force of this spring exerted to normally maintain the loose dog in its advanced position against a in 8? projecting from the forward face of t 1e dog rocker.

An important feature of the present invention consists of the means by which adjustment may be effected of the depending actuating member or arm of the dog rocker relatively to the body portion thereof in order to regulate the pull of the dog rocker. This construction comprises an arm 88 pivoted at its upper end by a pivot screw 89 to the dogrocker and above the pivotal center thereof. The arm 88 is preferably formed as shown with its pivoted end re ceived in a cut-out portion or recess 90 in the body of the dog rocker. The pivot screw 89 of this arm is so constructed that when the screw is loose it will permit a pivotal adjustment of the arm around the screw as a center, but when the screw is tightened its head will bind against the arm and tend to hold the arm in the position to which it has been adjusted. The lo. end of the arm 88 carries the pins 34 and 58 hereinbe'fore described, and by which operative connection is effected between the space key and the dog rocker and between the universal bar and the dog rocker, these pins projecting from.

opposite sides of the arm as best shown in it is slotted at 92. Intermediate the body of the dog rocker and the arm 88 and surrounding the stem of the ad usting screw 91 is a .-coiled expansion spring 93, the forward end of which is received in a recess a; formed in the dog rocker and the rear of which bears against the arm 88. l t he linden stood that when the screw 8 loose z justment of the l 91. v i ardiy the weirdly around its pivot screw 89 whereas by ba'elnng up the screw 91 the arm will he turned reariai'dly around the pivot sore W 89 by the spring 93. .ihns a fore and of?) adjustment of the lower end oi the CiGPO'Yi" ing arm 88 may be readily eiiected from the rear of the machine by turning the so ew 91 in one diretion 01 the other. By zidjust'ng the arm 88 of the dog rocker in the min 1161' described, its point of connection with the train of connections to the universal heimay be regulated Without varying {1B position of the dog rocker to the esezoement Wheel. Otherwise expresseeh the may he nclgusted to compensate for a y inriations that may exist in the erain (LL nections between the univeiisal her o the clog rocker 1n diiie mt :hlres Milieu? varying the position of the dog reenter in proper adjustment relntiveiy to ihe nient Wheel. will understood inspection of 1 and l that the operative movement of the dog rocker fro-in its normal position, Whether it is aotn by tively hold it is on one side by the head of ihe screw to receive the operating thrush and the spring 93 resisting an independent movement of the arm in the opposite or return direction. I

It will bQUIKiEYS'WOCi that an adjustment of the arm 88 relatively to the body of the dog rocker requires a corrosoonciing; nih justment of the conneohions noizween the rocker and] the space key: For this reason there is a relative adjustment between the two members 4J1" 131151 5]. of the two-part actuating device h. This ediustnlent enables the member to be ad usted fore anci. aft of the machine to eoinpensate for Ehe acijustzneni; of the arm 88 and that the can! 57 may always bear the same ielntion to the pin 58, irrespective of the position to which. said pin may be adjusted with the arm The term dog rocker employed herein in a giinerie sense 21ml intended to cover a (log com ie]: or holder however constructed or mounted.

'Whet ii ion as new and desire to secure by Letters Patent,

1. In a, typewi'iting machine; the combination of a type ban 5 nniv he? now-- ated by the bin, n dog I'O'CliGi and intermediate actuating conneeiions hetween said universal her and dog rocker, saici' Com nections comprising aimswhich extend. weirdly from said universal hal a rock sha havingnpwmdly extending arms to which 1 low arms on the universal bar are conneoi;

centrally disposed on said s 2, in a, typewriting machine the nation of a typo hm n universal her some by the t )e :1 dog rocker, and in'i'zi'nielia se alienating tonneotions heivween sniii 11Hli"1'$dl bur anal Clog hooker, said connections oolnpiisi o :in unz'ighb rocker n nested with the uniiwsnl hair, and 1;, ii. einl'ive on the r r seller and inning P toot point l -nt elevations and zit 'fQfS'fll; (listnniy ital in ll? a arm and; hnh hen tact points 2170 o forent disks said upi'ig" n [the at $1 .mei: (llSi'iiI :es pivotal eel ZOOlOEE! verse om its n02 out from hie uni the resin, *e to the niovein by the (log richer is least at the of the movement of the universal 4. in a type\' hing mmhine, t nation of a UHF-JG L'O'ii'i 1 .111 bar, a clog inches, is

-intenneiiinto :niuuiing conneciions between one universal bar nmi (log rocker, said 001- nections minimisin two meinheit-s one eonieetugi wn'h the (10;; rocker and the o iih universe] heir, a "pin and slot eonneetion. between smtl men reeehos tion a nn niedi univei'szil inn 6. In a typewriting machine, the combination of a universal bar; a dog rocker; and intermediate connections between said universal bar and (10g rocker, said connections comprising arms extending from the universal bar, a rock shaft, arms on said rock shaft with which the arms on the universal bar are connected, an actuating member on said rock shaft, a second co-acting actuating member operatively connected with the dog rocker, a pin and slot connection between said actuating members, and a contact on said second actuating member which normally engages the first mentioned member to effect a transmission of movement from one member to the other before the pin reaches the end of the slot and is effective to transmit movement from onemember to the other.

T. In a typewriting machine, the combination of a universal bar; a dog rocker; intermediate connections between said universal bar and dog rocker, said connections comprising arms extending from the 1111l"61- sal bar, a rock shaft, arms on said rock shaft with which the arms on the universal bar are connected, an actuating member on said rock shaft, a second oo-acting actuating member operatively connected with the dog rocker, a pin and slot connection between said actuating members, and a cont-act on said second actuating member which normally engages the first mentioned member to effect a transmission of movement from one member to the other before the pin reaches the end of the slot and is eifective to transmit movement from one member to the other, said members being separable to aflord an actuation of the dog rocker independently of the universal bar; and a space key connected to said dog rocker through independent connections, whereby an actua- 'pin reaches the end of the slot and is effective to transmit movement from one member to the other, said members being separable to aflord an actuation of the dog rocker independently of the universal bar; and a space key connected to said dog rocker through independent connections, whereby an actuation of the dog rocker may be effected by the space key independently of the universal bar.

9. In a typewriting machine, the combination of a universal bar; a dog rocker; and intermediate connections between said universal bar and dog rocker, said connections comprising arms extending from the universal bar, a rock shaft, arms on said rock shaft with which the arms on the universal bar are connected, a crank arm on said rock shaft, a link pivoted to the dog rocker and connected by a pin and slot connection with said crank arm, and a depending arm on said link which cosacts with said crank arm nearer to the rock shaft than said pin and slot connection and normally engaged by said crank arm, so that said link is moved first through the depending arm and then through the pin and slot connection.

10. In a typewriting machine, the combination of a universal bar; a dog rocker; intermediate connections between said universal bar and dog rocker, said connections comprising arms extending from the universal bar, a rock shaft, arms on the rock shaft with which the arms on the universal bar are connected, a crank arm on said-'rock shaft, a link pivoted to the dog rocke'r and connected by a pin and slot connection with said crank arm, and a depending arm on said link which co-acts with said crank arm nearer to the rock shaft than said pin and slot connection and is normally engaged by said crank arm, said link being movable independently of said crank arm; and a space key connected to the dog rocker through in dependent connections, whereby the dog rocker may be actuated from the space key independently of said rock shaft and universal bar.

11. In a typewriting machine, the combination of a universal bar; an upwardly and rearwardly swinging type bar operative to actuate the universal bar but movable independently thereof during the first portion of the stroke of the type bar; a dog rocker; and intermediate actuating connections between said universal bar nd dog rocker and operative on the dog ocker from the beginning to the end of the stroke of the universal bar, said connections comprising an upright rocking member, and a substantially horizontally disposed link bifurcated at one end to form two arms which co-act successively with said rocking member at different distances from the pivotal center thereof and provide a two-point variation in the leverage as motion is transmitted from the universal bar to the dog rocker.

12. In a typewriting machinqthe combination of a universal bar; an upwardly and rearwardly swinging ty e bar operative to .actuate the universal bar but movable independently thereof during the first portion of the stroke of the type r; a dogrocker; and intermediate actuating connections between said universal bar and dog rocker and opbar opmirlvn'il r dly 1: oparatlve but 1110 Me rst port citing}; 105

" number 7 4111 0 dwenuen 1 mckm he comb mac P universal 11:11"

low

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j swinging by arm pivthe adjustment of the arm around its pivot, and an actuating device operatively connected to said arm.

19. in a typewriting machine, the combination of a dog rocker, an actuating arm pivoted to the dog rocker by a binding screw which when tightened holds said arm in the position to which it may be adjusted around its pivot on the dog rocker, and an actuating device operatively connected with said arm to actuate the dog rocker.

20. In a typewriting machine, the combination of a dog rocker, an actuating arm pivoted to the dog rocker by a binding screw which when/tightened holds said arm in the position to which it may be adjusted around its pivot on the dog rocker, a spring which tends to turn said arm in one direction around its pivot, a. screw which co-acts with said arm and resists the force of said spring and controls the adjustment of the arm around its pivot, and an actuating device operatively connected. to said arm.

21. In a typewriting machine, the combination of a dog rocker, an actuating arm pivotally adjustable on the body of the dog roeke-, a universal bar, connections from said universal bar to said actuating arm, a space key, and separate and independent iamncctions from said space key to said actuating arm.

In a ty 'iewriting machine, the combination of a dog rocker, an actuating arm pivotally adjustable on the body of the dog rocker, a universal bar, connections from said universal bar to said actuating arm, said connections including a link pivoted to said actuating arm, a space key, and separate and independent connections from the space key to the actuating arm, said last mentioned connections including a pivoted member operative on said arm.

23. In a typewriting machine, the combination of a dog rocker, an actuating arm pivoted. to the dog rocker by a binding scrbw icli when "lightened holds said arm in the ition to which it may be adjusted around its pivotv on the dog rocker, a universal bar, con ect ions from said universal bar to said actiunving arm, aspace key, and separate and independent connections from said space key to said actuating arm.

9. in a typewriting machine, the combination of a dog rocker, an actuating arm 'aoivoted to the body of the dog rocker and through which motion is transmitted to the dog rot-her, a s 'iring' which tends to turn said arm in one direction around its pivot, a screw which co-acts-with said arm and re sists the I orceot said spring and controls the adjustn'ient of the arm around its pivot,

nasaaea a universal bar, connections from said universal bar to said actuating arm, a space key,

and separate and independent connections from said space key to said actuating arm.

25. In a typewriting machine, the combination of a (log rocker, an actuating arm pivoted to the dog rocker by a binding screw which when tightened holds said arm in the position to which it may be adjusted around its pivot on the dog rocker, a spring which tends to turn said arm in one direction around its pivot, a screw which eo-acts with said arm and resists-the force of said spring and controls the adjustment of the arm around its pivot, a universal bar, connections from said universal bar to said actuating arm, a space key, and separate and independent connectlons from said space key to said actuating arm.

bination of a universal bar adapted to be actuated by the type bars, a dog carrier, and intern'iediate interrupted two-point actuating means whereby the dog carrier is first started at a slow speed and then caused to move. in order to complete its movement, at a higher peed.

27. In a typewriting machine, the combination of a universal bar adapted to be actuated by the type bars, a. dog carrier, a member having two contact points with an intervening gap, and a lever adapted to engage said points one after the other.

28. In a typewriting machine, the combination of a universal bar adapted to be actuated by the type bars, a dog carrier, a lever having a two-armed member connected to the dog carrier, one arm of said member to be engaged by one part of the lever and the other arm by another part of the lever in succession.

29. In a typewriting machine, the combination of type'bars, a universal bar actuated thereby, the type bars being operative first independently pf the universal bar, an actuating member operatively connected to the universal bar and operated thereby, a dog rocker, a connecting member carried by the dog rocker, means for adjusting said last mentioned member to different set positions on the dog rocker, a link operatively connectcd to said adjustable member, and a pin and slot connection between said link and said actuating member.

Signed at llion, in the county of Herkimer and State of New York, this 2nd day of September, A. D. 1916.

GEORGE A. SEIB. v Viti'iesses MARY C. Gn'eason, CLARENCE M. Smwson'. 

